Document QgzGKe38NnBLE0rrgbJE24j3o

TO: Robert Martin *s**A. A v. . j s.. v5 i .vFi n c^_ iir FROM: DATE: Interoffice Communication STJBJ: T. G. Grumbles May 26, 1987 EXPERIMENTAL ALUMINA PRODUCTS: MSDS AND LABEL WARNINGS VISHA As we have discussed, based on the physical properties of our new Aluminas, additional warning language regarding the inhalation hazards of these products is recommended for the MSDS's and sample labels. In general, the small particle size aluminas are more respirable. They still would be considered non-toxic nuiscance dust but additional warning emphasising the need to avoid inhalation should be used. The recently issued "Small Particle Size Experimental Aluminas" Technical Data Sheet reflected this issue. The following should be done for R&D samples of the small particle size aluminas: A. Material Safety Data Sheet Modifications 1. On the MSDS add the following statement under "Nature of- Hazard - Inhalation" in Section 5: "Due to the small particle size of this alumina, precautions should be taken to avoid inhalation of dust during handling." 2. Under "Toxicity Data" add the following statement: "Testing done on similar material with a larger average particle size." 3. Under Section 8, Ventilation Requirements add the following: "Local exhaust ventilation may be required for some operations to assure adequate control." 4. Under Section 8 Respiratory Protection, add: efficiency filters" "with high A copy of the affected MSDS portions with numbers corresponding to the changes is attached. B. Sample Label Modifications: The labels for sample containers should include the following: "Respirable nuiscance dust. Due to the small particle size, precautions should be taken to avoid inhalation of dust during handling." The Vista Toxicology Assessment Committee will be reviewing the potential health effects and possible testing needs of these new aluminas, specifically whiskers, in the near future. For now the VVV 000008368 Robert Martin Page 2 May 26, 1987 experimental aluminas should be information discussed above. distributed with the amended T. G. Grumbles ajo .1 Attachment cc Carl Kerfoot Allen Nielsen Duane Lewis Mike Sweet vvv 000008869 f" ` r'i ' AA- QNE FIRST AID EYES: SKIN: Flush with large amounts of water for at least 15 minutes. If irritation occurs, seek medical aid. Flush with water. INHALATION: |f exposed to excessive amounts, remove to fresh air. INGESTION: Seek medical advice. NATURE OF HAZARD EYES: May cause physical irritation if exposed to large amounts of dust. SKIN: No hazard under normal circumstance. INHALATION May cause physical irritation to upper respiratory tract. This material is a nuisance dust and as such does not produce significant organic disease or toxic effect with reasonable exposures. INGESTION: No hazard under normal circumstances. EFFECTS OF OVEREXPOSURE: ACUTE OVEREXPOSURE: Physical irritation. CHRONIC OVEREXPOSURE: Physical irritation. No known long-term toxic effects. THRESHOLD LIMIT VALUE (TLV) Vista recommends this material be treated as a nuisance dust. 1985-86 ACCIH TLV: 10 mg/m3 of total dust and 5 mg/m3 respirable dust. 05HA PEL: 15 mg/m3 of total dust and 5 mg/m3 respirable dust. TOXICITY DATA <T) . SKIN CONTACT: Rabbit skin LDq: 4 g/Kg Rabbit skin irritation index: 0,2 (max. score possible is 8.0} EYE CONTACT: Rabbit eye irritation index: 6 (max. score possible is 110) INHALATION: Rats survived exposure to a concentration of 83 mg/T for one hour. INGESTION: Acute oral LD^g in rats: 20 g/kg VVV 0OGOO83TC SPECIAL PRECAUTIONS: AVOID INHALATION I m SPILLGK LEAK PROCEDURES STEPS TO BE TAKEN IF MATERIAL IS RELEASED OR SPILLED Material should be picked up mechanically and placed in drums, bins, or other appropriate containers. NEUTRALIZING CHEMICALS Not applicable. WASTE DISPOSAL METHOD May be disposed of in a landfill according to local, state end federal regulations. RQTECnG FQ VENTILATION REQUIREMENTS Mechanical ventilation should be used to control dust levels below the PEL and TLV. SPECIFIC PERSONAL PROTECTIVE EQUIPMENT RESPIRATORY (SPECIFY IN DETAIL): -- NIOSH approved air-purifying dust respirator/(HO EYE: Chemical goggles GLOVES: Not needed. OTHER CLOTHING AND EQUIPMENT: Not needed. VVV 000008871 Vista Chemical Company Small Particle Size Experimental Aluminas Vista Chemical Company is involved in research on developing experimental aluminas having average parti cle sizes less than one micron. These aluminas have a high metallic purity and can be produced to crystal structures of amorphous, boehmite, gamma, delta and alpha. CATAPAL* XJ Alumina This product is a small crystallite sized boehmite alumina. It is available as a dried powder consisting of highly friable aggregates with a primary particle size of approximately 0.5 microns diameter This product could also be supplied in slurry form (aqueous or organic carrier). Specific properties of (he powder are Hsced below. CAPATAL XMS Alumina This product is an amorphous alumina composed of spherical particles generally smaller than one micron. Upon calcination, the material undergoes phase transformations typical of boehmite type alumina (gamma, delta, theta, alpha). Vfery limited quantities have been produced and samples are available only upon special request. Properties are listed below. CATAPAL XO Alumina This product is a high purity delta alumina composed of spherical parriclcs averaging approximately 0.3 microns in diameter It is available currently in powder or slurry form. Gamma crystalline phase material can be produced upon special request. Properties arc listed below. Composition and Physical Properties* AUOj Content (wc.%) H20 Content (Free) (wt.%) (Bound) (wt.%) Carbon Content (wt.%) Crystal Phase Crystal Size (Angscroms) Mecal Impurities (ppm) TiOz Fc:Oj SiO* NazO ftrticlc Size (microns) Surface Area1 (m2/g) As is 500 C 1000C 1400C Bulk Density (gfcc) (Loose) (Ricked) CATAPAL XJ 72 0 18 10 Boehmite 020 021 28 40 100 , 100 250 100 0.35 -- 450 -- 6.8 0.141 0.1% CATAPAL XMS 80 5 10 5 Amorphous -- -- -- -- 100 100 250 100 0.2 -- -- 45 -- -- -- CATAI 97.5 1.0 1.0 0.5 Delta -- -- 100 100 250 100 0.3 15-65 -- -- -- 0.10 0.14 VISTA These properties tie based cn pilot plant studies and may vary upon commercialization. 'Calcined for one hour at temperatures shown. Availability: CATAPAL small particle aluminas are available in gram quantities. Safety and Handling: CATAPAL aluminas are non-coxic materials and would be classified as nuisance dust. Due to the extremely small particle size of these aluminas, precautions should be taken to avoid inhalation of any dust ducing handling or shipping. THE DATA CONTAINED HEREIN ARE FOR GENERAL INFORMATION PURPOSES ONLY. PLEASE REFER TO THE VISTA CHEMICAL COMPANY MATERIAL SAFETY DATA SHEET FOR SPECIFIC. COMPLETE INFORMATION REGARDING THIS PRODUCT. VistaandCATAPULan iifiilral'riinliieiiifi i/l'iirr Clmtea/Campewf. The above data are based on tests and experience which Vista Chemical Company believes reliable, and are supplied fot informational purposes only Vista Chemical Company disclaims any liability for damage or injury which results from the use of the above data and nothing contained therein shall constitute a guarantee, warranty or representation (including freedom from patent liability) by Vista Chemical Company with respect to the data, the product described or io use for any specific purpose, even if that purpose is known to Vista Chemical Company. For detailed infotmamn regarding these products, please refer to the respective Vista Chemical Company Material Safety Data Sheet. l4i7A.ni txwLvn.iu yyy Q000G83T2 i